<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <img src="" alt="" class="image">
  <input type="file" class="input_file" />
  <script>

    let image = document.querySelector('.image');
    let file = document.querySelector('.input_file');


    file.onchange = function () {
      let files = this.files[0];
      let reader = new FileReader();
      reader.onload = function () {
        image.src = reader.result;
      }
      reader.readAsDataURL(files);
    }

  </script>
</body>

</html>